Preschool Body Parts Fast Facts

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An eye is an organ with the purpose of detecting light. The simplest eyes do nothing but detect whether the surroundings are light or dark. More complex eyes are used to provide the sense of vision.

Compound eyes are found among the arthropods (insects and kin), and are composed of many simple facets which give a pixelated image (not multiple images as is often believed).

Light from a distant object and light from a near object being brought to a focus

The human eye is said to be the window to the soul

In most vertebrates and some mollusks the eye works by projecting images onto a light-sensitive retina, where the light is detected and transmitted to the brain via the optic nerve. The eye is typically roughly spherical, filled with a transparent gel-like substance called the vitreous humour, with a focusing lens and often a muscle called the iris that controls how much light enters.

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These fast facts were based off of a Wikipedia Document on Body Parts.

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